The elevation of the end of the steel beam supported by a concrete floor is adjusted

by means of the steel

wedges E and F. The base plate CD has been welded to the lower flange of beam, and

the end reaction of

the beam is known to be 150 kN. The coefficient of static friction is 0.30 between t

he two steel surfaces and

0.60 between the steel and the concrete. If the horizontal motion of the beam is pre

vented by the force Q,

determine (a) the force P required to raise the beam, (b) the corresponding force Q.

?

manoja sai , 12 Years ago

Grade